Automobile ventilator



Nov. 16 1926.

F. E.-WIE$E AUTOMOBILE VENTILA'IOR 1924 2 Sheets-Sheet 1 Filed Oct. 22

WITNESSES ATTORNEYS Nov. 16 19267 F. E. WIESER AUTOMOBILE VENTILATOR 1924 2 Sheets Sheet 2 Filed Oct. 22,

INVENTOR TE/4411567 RY diw I ATTORNEYS Patented Nov. '15, 1926 I UNITED; STATES PATENT OFFICE.

ram: Ebwm .wmsnn, or SAN LUIS oBIsro, CALIFORNIA, ASSIGNOB or ONE-HALF 'ro LAFE TODD, or SAN LUIS omsro, earn-01mm.

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Application filed 0etohe1' 22,

This invention relates'to automobile ventilators and is especially designed for use Eritih automobiles having the closed typeof The object of the invention is the provision of a ventilator for closed cars which is susceptible of incorporation in the structure or body .of the car in such manner as not to detract from the appearance of the car or from its structural integrity and which serves to effectively remove the foul or poisonous air or gases that accumulate in i the upper part of ithe car without setting up drafts in the carer exposing the occupants to chilling and undesirable, blasts.

A further object is the provision of an automobile ventilator of this character which is of simple and durable construction, re: liable in operation, and easy and comparatively inex ensive to manufacture.

Other 0 jects and advantages reside in certain novel features of the construction, arrangement and combination of parts,

' which will be hereinafter more fully described and particularly pointed out in'the appended claims, reference bein had to the accompanying drawings, forming a part of this specification-and in which:

Figure 1 is a view in rear elevation of a closed car body equipped with one embodiment of the present invention,

Figure 2 is a view in section on line 2-2 of Figure 1, v V

Figure 3 isa fragmentary, perspective view showing another embodiment of the invention, I

Figure 4 is a similar view showing still another embodiment of the invention,

Figure 5 is a view in elevation of the inside of the car looking to the rear thereof and showing a' further modified form of the invention, the sides top, bottom and frame members of the car structure being shown in section, and

Figure 6 is a view in longitudinalsection on the line 55 of Fig. 5, parts being'shown in elevation for the sake of simplicity of illustration. J

Referring to the drawing, wherein for the sake of illustration are shown the preferred embodiments of theinvention and more particularly to Figures 1 and 2, the numeral 5 designates enerally a closed car structure or body which includgs arear wall or back 6 and a top 7. The rear wall 6 is provided i924. 7 Serial No. 745,192.

with a'plurality of ventilating passa es 10' arranged in a horizontal row across t e car just above the window 8 and separated from each other by thin artitions 11. The ventilating passages 9 ii municating with the enclosed compartment of the car at the top and rear thereof. The ventilating passages 10 curve 'rearwardly "and downwardly from the large ends 12 and ave'large ends 12 com-- gradually narrow or constrict tosmall ends 13 which open' through the ledge 9 on the outside of the glass panel 8.

I With this arrangement the rarefaction or partial vacuum occurring at the rear of the automobile when the same is in motion causes a suction to be'exerted through the ventilating passages 10 thereby drawing the foul or poisonousair or gases from the upper part of the compartment of the car out through the passages to the atmosphere. The constricted form of the passages and the fact that they curve downwardly and open to the atmosphere through the led e 9 prevents the ingress of 'rain, dirt and ust and the action of the suction heretofore described also aids to thisend.

The form of-the invention illustrated in Figure 3 is designed for incorporation in light weight cars and comprises a curved tubular casing 15 which is set in an opening 16 cut in the backer rear walls 17 of a closedfib car. The casing 15 includes a reversely curved top wall 18, a curved bottom wall 19,

vertical end walls 20, and a plurality of vertical partitions 21 definin a plurality of ventilating passages 22. T e top wall 18 of the tubular casing 15 is provided with apertured attaching ears 23 designed to be secured to the top 24 of the closed car by suittical plane.

In the form of the'invention illustratedin' Figure 4 a tubular casing is provided and is identical with the. casing 15 except that its top wall 26 and its bottom wall 27 are curved more sharply downwardly so that the outlet ends of the ventilating passages are disposed at anangle of 45de rees just above the window in the rear wal of the car. The casing 25 in all other respects is similar to the casin 15; The type of 0011-. struction illustrate in Figure 4 is well adapted for use with heavy types of car bodies.

It is to be understood that the outlet ends of the passages 10 of the form of the inverttion shown in Figures 1 and 2 may be located in a horizontal plane or may be disposed at an angle as found suitable and desirable.

Under some circumstances it may not be desirable to extend the ventilating openings or passages entirel through the rear wall of .the car body an the structure shown in Figs. 5 and 6 is designed with this in mind. In; Figs. 5 and 6 acar body is designated generally at and is slapportedin theusual manner on the frame 3 The car body includes a rear'wall .37 having therein. A plurality of'ventilating assages 39 are formed in'the rear wall 37 a ve the window 38, the passages 39 being defined by vertical partitions 40, the lower ends of which are deflected or curved laterally, as indicated at'41. 'Asshown in Fig. 6 the peesages 39 communicate. with the interior of the, car body but do not extend entirely through the rear wall of the car. since a sectional portion 37 of the rear wall closes ofi thesepassages from the atmosphere at the rear. The passages 39 communicate witha transversely extending passage or manifold 42 which connects at one side with a suction line 43. The suction line43' extends down through the rear wall and terminates in a rearwardlty directed nozzle or jet44 which enters an is axially arranged in a conical ejector tube 45 supported ya bracket '46 on the frame 36.

In operation with the form of the invention shown in Figs. 5 and 6 when the car is a window 38 f movin forwardly air will pass rapidly throug the ejector tube 45 which is so shaped and formed as to increase the velocity of the air passing therethrough. The air which passes at a high rate of speed through the tube 45 also moves at a similar rate past the open end of the jet or nozzle 44 and consequently entra'ins the air in the suction line 43 and causes suction to be exerted through the line 43 and consequently through the manifold 42' and through the ventilating passages 39, thereby drawing the foul airand gasesfrom the upper part of the interior of the car and disch argin the same to the atmosphere iearwardly o the car. It is to be noted that the ejector tube 45- is located adjacent the rear of the car so that thevacuum or rarefication products at the rear of the car aid in the introduction of a'moving current of air through the suction line 43.

1. A closed car structure having a top and a rear wall provided with a window, the

window being set in the rear wall, the portion of the'rear wall above the window providing an overhanging shoulder, said rear wall having downwardly curving ventilating passages communicating with the interiorof the car at the 'uncture of the rear wall and top and extendin' downwardly through the overhanging sho der and opening to the exterior through the underface of the shoulder to communicate with the atmosphere.

2. A closed car structure having its rear wall provided with downwardly curving ventilating ,passages, 'the wentilating passages communicating with the interior of the car at their upper ends and communieating with the exterior of the car at their lower ends, the upper ends of they assages being relat vely large and flaring, t 0 lower ends of the passages being relativelysmall and cont P 3.-A closed car structure having its rear wall formed with a downwardly curving opening and having vertical partitions in said opening defining downwardly curved ventilating passages, the ventilatin passages communicating with the interior of thecar at their upper ends and communicatin with the exterior of the car at their lower on s, the upper ends of the passages be:

m relative y large and flaring, the lower en s of the passages being relatively small and contracted. 

